Fuzzy Control Method and Apparatus for Signal Receiving Part in High Speed Wavelength Division Multiplexing System

Abstract

The invention provides a fuzzy control method and apparatus for a signal receiving part in a high speed WDM system, wherein, the method comprises the following steps: step A, obtaining related information of each device in a receiving system and working environment parameter information of the receiving system; step B, according to the related information of each device and the working environment parameter information, finding out fuzzy control parameters which best match the related information of each device and the working environment parameter information from a fuzzy control parameter table stored in the system, and controlling the parameters of each device in the receiving system according to the fuzzy control parameters to make the system reach the best receiving balancing point. The invention can simplify the adjusting steps of the receiver and save the adjusting time.

Description

TECHNICAL FIELD[0001]The present invention relates to the field of optical communication technology, and in particular, to a fuzzy control method and apparatus for signal receiving part in high speed Wavelength Division Multiplexing (WDM) system.BACKGROUND OF THE RELATED ART[0002]With the evolving and developing of the conventional Dense Wavelength Division Multiplexing (DWDM) optical transmission system, the transmission with higher speed (>40 Gbit / s) implemented in a single channel has become a clearer direction for the evolution thereof. In the evolution direction, an important technology is the high speed optical signal processing at the receiving end of the channel, i.e. how to transform efficiently the high speed optical signal into the information which is recognizable by the receiving chip. Wherein, the following technologies may be involved:[0003]1. since the dispersion tolerance of the high speed transmission system is exponentially reduced, more accurate channel disper...

AI Technical Summary

Benefits of technology

[0010]The purpose of the invention is to provide a fuzzy control method for signal receiving part in a high speed wavelength division multiplexing (WDM) system, which can simplify the adjusting steps of receivers and save the adjusting time.

[0011]Another purpose of the invention is to provide a fuzzy control apparatus for signal receiving part in a high speed wavelength division multiplexing system, which can simplify the adjusting steps of receivers and save the adjusting time.

[0034]The fuzzy control method and apparatus for signal receiving part in a high speed WDM system of the invention achieve the effect of saving adjusting time and simplify the adjusting algorithm of the receiver under common situation since the technical measure of presetting parameters of receiver of the whole system with the fuzzy parameter control table is used, meanwhile, the frequent jitter of the performance in the early system is avoided since the adjusting steps are cut down.

Problems solved by technology

In conclusion, many conditions may influence the final data receiving result at the receiving end processing the high speed optical signals, and the restraining and balancing factors between various conditions are very complicated, thus an accurate result may be difficult to obtain by the way of simulation.

However, the method has the following disadvantages: the combination trial and error algorithm is so complicated that it takes a long time to reach the optimal receiving area of the system, and sometimes the process of parameter adjustment will cause the case that the receiving characteristics differ greatly and the performances are frequently repeated.

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